Assertion(A): Different proteins in the membrane play a major role in both active as well as passive transport.
Reason(R): Pumps can transport substances from a high concentration to a low concentration (‘uphill’ transport).
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.